Test Bank — Human Biology: Concepts and
Current Issues, 8th Edition — ISBN
9780134042435
Covalent Bond - answers-an electron sharing bond
strongest chemical bonds in nature
rarely breaks
Ion - answers-An electrically charged atom of molecule
has shortage or surplus of more than one electron
Ionic Bond - answers-two oppositely charged ions come together
weaker than covalent
Polar - answers-molecules such as water that are electrically neutral overall but still have
partially charged regions or poles
Hydrogen Bond - answers-WEAK attractive force between oppositely charged regions of polar
molecules that contain covalently bonded hydrogen
Keeps DNA together
What is the most essential molecule? - answers-Water
makes up 60% of our body weight
1
, Solvent - answers-is a liquid in which other substances dissolve
Solute - answers-any dissolved substance
Organic molecules - answers-molecules that contain carbon and other elements held together
by covalent bonds
Dehydration Synthesis - answers-macromolecules are built within the cell itself
smallest units are simple sugars and the macromolecule is carbohydrate
REMOVES water molecules
Hydrolosis - answers-macromolecules are broken down
a water molecule is added each time a covalent bond is broken
Monosaccharide - answers-"one sugar"Ribose, deoxyribose, glucose, fructose, most important
in humans
Oligosacchrides - answers-Short strings of monosaccharides linked together by dehydration
synthesis
(Sucrose)
Polysaccharides - answers-are a convenient way for cells to stockpile extra energy by locking it
in the bonds of the polysaccharide molecule
Lipids - answers-do no dissolve in water
2
Current Issues, 8th Edition — ISBN
9780134042435
Covalent Bond - answers-an electron sharing bond
strongest chemical bonds in nature
rarely breaks
Ion - answers-An electrically charged atom of molecule
has shortage or surplus of more than one electron
Ionic Bond - answers-two oppositely charged ions come together
weaker than covalent
Polar - answers-molecules such as water that are electrically neutral overall but still have
partially charged regions or poles
Hydrogen Bond - answers-WEAK attractive force between oppositely charged regions of polar
molecules that contain covalently bonded hydrogen
Keeps DNA together
What is the most essential molecule? - answers-Water
makes up 60% of our body weight
1
, Solvent - answers-is a liquid in which other substances dissolve
Solute - answers-any dissolved substance
Organic molecules - answers-molecules that contain carbon and other elements held together
by covalent bonds
Dehydration Synthesis - answers-macromolecules are built within the cell itself
smallest units are simple sugars and the macromolecule is carbohydrate
REMOVES water molecules
Hydrolosis - answers-macromolecules are broken down
a water molecule is added each time a covalent bond is broken
Monosaccharide - answers-"one sugar"Ribose, deoxyribose, glucose, fructose, most important
in humans
Oligosacchrides - answers-Short strings of monosaccharides linked together by dehydration
synthesis
(Sucrose)
Polysaccharides - answers-are a convenient way for cells to stockpile extra energy by locking it
in the bonds of the polysaccharide molecule
Lipids - answers-do no dissolve in water
2
